### Review of Pre-Algebra Lesson 4-3

equation - a math sentence that contains an equals sign (=), showing that two expressions are equal.

solution - the value of the variable that makes an equation true

inverse operations - operations that "undo" each other --addition/subtraction and multiplication/division

equivalent equations - equations that have the same solution

Remember to always use the inverse operation to solve!!

**Always do the same to both sides!!**

Video of lesson in class:

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